单项选择题
If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the （）
A.turbocharger will stall B.density of the air charge will decrease C.scavenge effect will increase D.exhaust pressure will increase
单项选择题 The amount of fuel injection into a diesel engine cylinder by a unit injector, is controlled by（）
单项选择题 Which of the following should always be checked prior to starting a diesel engine?（）
单项选择题 An after-cooler installed between the turbocharger and the cylinder air inlet （）
